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Xerces2 is the next generation of high performance, fully compliant XML parsers in the Apache Xerces family.
This new version of Xerces introduces the Xerces Native Interface (XNI), a complete framework for building
parser components and configurations that is extremely modular and easy to program. The Apache Xerces2 parser is
the reference implementation of XNI but other parser components, configurations, and parsers can be written
using the Xerces Native Interface. For complete design and implementation documents, refer to the XNI Manual.
Xerces2 is a fully conforming XML Schema 1.0 processor. A partial experimental implementation of the XML Schema
1.1 Structures and Datatypes Working Drafts (December 2009) and an experimental implementation of the XML Schema
Definition Language (XSD): Component Designators (SCD) Candidate Recommendation (January 2010) are provided for
evaluation. For more information, refer to the XML Schema page. Xerces2 also provides a complete implementation
of the Document Object Model Level 3 Core and Load/Save W3C Recommendations and provides a complete
implementation of the XML Inclusions (XInclude) W3C Recommendation. It also provides support for OASIS XML
Catalogs v1.1. Xerces2 is able to parse documents written according to the XML 1.1 Recommendation, except that
it does not yet provide an option to enable normalization checking as described in section 2.13 of this
specification. It also handles namespaces according to the XML Namespaces 1.1 Recommendation, and will correctly
serialize XML 1.1 documents if the DOM level 3 load/save APIs are in use.
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.xerces.jaxp;
import java.util.Hashtable;
import javax.xml.XMLConstants;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.validation.Schema;
import org.apache.xerces.impl.Constants;
import org.xml.sax.SAXException;
import org.xml.sax.SAXNotRecognizedException;
import org.xml.sax.SAXNotSupportedException;
/**
* This is the implementation specific class for the
* javax.xml.parsers.SAXParserFactory. This is the platform
* default implementation for the platform.
*
* @author Rajiv Mordani
* @author Edwin Goei
*
* @version $Id: SAXParserFactoryImpl.java 447237 2006-09-18 05:03:10Z mrglavas $
*/
public class SAXParserFactoryImpl extends SAXParserFactory {
/** Feature identifier: namespaces. */
private static final String NAMESPACES_FEATURE =
Constants.SAX_FEATURE_PREFIX + Constants.NAMESPACES_FEATURE;
/** Feature identifier: validation. */
private static final String VALIDATION_FEATURE =
Constants.SAX_FEATURE_PREFIX + Constants.VALIDATION_FEATURE;
/** Feature identifier: XInclude processing */
private static final String XINCLUDE_FEATURE =
Constants.XERCES_FEATURE_PREFIX + Constants.XINCLUDE_FEATURE;
private Hashtable features;
private Schema grammar;
private boolean isXIncludeAware;
/**
* State of the secure processing feature, initially false
*/
private boolean fSecureProcess = false;
/**
* Creates a new instance of SAXParser using the currently
* configured factory parameters.
* @return javax.xml.parsers.SAXParser
*/
public SAXParser newSAXParser()
throws ParserConfigurationException {
SAXParser saxParserImpl;
try {
saxParserImpl = new SAXParserImpl(this, features, fSecureProcess);
}
catch (SAXException se) {
// Translate to ParserConfigurationException
throw new ParserConfigurationException(se.getMessage());
}
return saxParserImpl;
}
/**
* Common code for translating exceptions
*/
private SAXParserImpl newSAXParserImpl()
throws ParserConfigurationException, SAXNotRecognizedException,
SAXNotSupportedException {
SAXParserImpl saxParserImpl;
try {
saxParserImpl = new SAXParserImpl(this, features);
} catch (SAXNotSupportedException e) {
throw e;
} catch (SAXNotRecognizedException e) {
throw e;
} catch (SAXException se) {
throw new ParserConfigurationException(se.getMessage());
}
return saxParserImpl;
}
/**
* Sets the particular feature in the underlying implementation of
* org.xml.sax.XMLReader.
*/
public void setFeature(String name, boolean value)
throws ParserConfigurationException, SAXNotRecognizedException,
SAXNotSupportedException {
if (name == null) {
throw new NullPointerException();
}
// If this is the secure processing feature, save it then return.
if (name.equals(XMLConstants.FEATURE_SECURE_PROCESSING)) {
fSecureProcess = value;
return;
}
// Keep built-in settings in synch with the feature values.
else if (name.equals(NAMESPACES_FEATURE)) {
setNamespaceAware(value);
return;
}
else if (name.equals(VALIDATION_FEATURE)) {
setValidating(value);
return;
}
else if (name.equals(XINCLUDE_FEATURE)) {
setXIncludeAware(value);
return;
}
// XXX This is ugly. We have to collect the features and then
// later create an XMLReader to verify the features.
if (features == null) {
features = new Hashtable();
}
features.put(name, value ? Boolean.TRUE : Boolean.FALSE);
// Test the feature by possibly throwing SAX exceptions
try {
newSAXParserImpl();
}
catch (SAXNotSupportedException e) {
features.remove(name);
throw e;
}
catch (SAXNotRecognizedException e) {
features.remove(name);
throw e;
}
}
/**
* returns the particular property requested for in the underlying
* implementation of org.xml.sax.XMLReader.
*/
public boolean getFeature(String name)
throws ParserConfigurationException, SAXNotRecognizedException,
SAXNotSupportedException {
if (name == null) {
throw new NullPointerException();
}
if (name.equals(XMLConstants.FEATURE_SECURE_PROCESSING)) {
return fSecureProcess;
}
else if (name.equals(NAMESPACES_FEATURE)) {
return isNamespaceAware();
}
else if (name.equals(VALIDATION_FEATURE)) {
return isValidating();
}
else if (name.equals(XINCLUDE_FEATURE)) {
return isXIncludeAware();
}
// Check for valid name by creating a dummy XMLReader to get
// feature value
return newSAXParserImpl().getXMLReader().getFeature(name);
}
public Schema getSchema() {
return grammar;
}
public void setSchema(Schema grammar) {
this.grammar = grammar;
}
public boolean isXIncludeAware() {
return this.isXIncludeAware;
}
public void setXIncludeAware(boolean state) {
this.isXIncludeAware = state;
}
}